A Planck is anything but limited. It is a great keyboard, one that many use as a daily driver, for all kinds of stuff. Ye,s you will put a lot of things on layers, but that's not really a bad thing. You may use your thumb a but more (but its your strongest digits and all it does is mash a space bar... let it do better!), but your hands will move a lot less. That's a win.
Unless you go split, an ortholinear, like the Planck, is a great choice. Especially when it has such powerful firmware as it does. Few keys? No problem, layers give you more benefits than the missing keys, most of the time.